S.F. 585 would add Minnesota to a national compact of states agreeing to elect the President of the United
States by a national popular vote as opposed to the current Electoral College system. If enough states adopt
this compact to account for 270 of the nationís electoral votes, they would effectively be able to enforce
the new process. Currently, eight states and the District of Columbia have agreed to the compact, accounting
for approximately a quarter of the Electoral College votes.
The above says the proposal already has about a quarter of the electoral votes. Once we reach 270 -- half of the total electoral votes, then that will be enough to choose the president no matter what the other states do with their electoral votes (The ones agreeing to this compact will assign all their electoral votes to the winner of the national popular vote). Anyway, since the proposal has got 1/4 and needs 1/2, that's why my title line says that the proposal is half way there (1/4 is half way to 1/2 -- maths is hard).
So anyway this looks like something that could happen. Compared to what we have now (winner take all in all states except Nebraska and Maine), it might not make much practical difference. But if the RepubliCONs succeed in changing some blue swing states that they control from winner-take-all to allocating electoral votes by congressional district, then it will be a big, big difference. If the RepubliCONs had had their way on this in 2012, Romney would be president by 16 electoral votes, instead of losing by 126 electoral votes and by 3.7% of the national popular vote ( https://www.freespeech.org/text/rigging-democracy )